Severe latency at both San Jose and Los Angeles Level3/AT&T peering

Sat Apr 12 04:40:50 UTC 2014

This should provide some background:

http://apps.fcc.gov/ecfs/document/view?id=7022026095

Drive Slow,
Paul

On Fri, Apr 11, 2014 at 6:50 PM, David Sotnick <sotnickd-nanog at ddv.com> wrote:
> Hi Nanog,
>
> I have a ticket open with Level 3, with whom I have 1gig pipes in Oakland,
> CA and Las Vegas, NV.
>
> One of our users noticed very slow file transfer/media delivery from the
> Bay Area to L.A., and on investigating it appears as though the peering
> point between Level3 and AT&T in SF was saturated and had 300ms avg.
> latency.
>
> 90 minutes later after receiving no call from Level3, I escalated to a P1
> ticket, as the latency is now > 1000ms and we're seeing 20% packet loss.
>
> I decided to statically route to the destination via our DR cluster in
> Vegas, and interestingly I found the same situation where AT&T and Level3
> peer in Tustin.
>
> mtr traceroutes, for those curious:
>
> Via Oakland:
>
>                                        My traceroute  [v0.71]
>
> hivemind (0.0.0.0)
> Fri Apr 11 15:36:08 2014
>
> Keys:  Help   Display mode   Restart statistics   Order of fields   quit
>
>                                                                   Packets
>             Pings
>
>  Host                                                           Loss%  Last
>   Avg  Best  Wrst StDev
>
>  1. 138.72.xxx.xxx                                               0.0%   0.3
>   0.2   0.1   0.3   0.1
>  2. pan5060-ae1-401.routerland.pixar.com                         0.0%   0.4
>   0.4   0.4   0.5   0.0
>  3. verge-vlan66.pixar.com                                       0.0%   0.6
>   0.7   0.6   0.9   0.1
>  4. ge-6-24.car1.Oakland1.Level3.net                             0.0%   0.7
> 105.5   0.7 307.3 110.9
>  5. ae-5-5.ebr2.SanJose1.Level3.net                              0.0%   1.7
>   1.7   1.6   2.8   0.4
>  6. ae-92-92.csw4.SanJose1.Level3.net                            0.0%   1.6
>   1.7   1.6   3.0   0.4
>  7. ae-4-90.edge2.SanJose1.Level3.net                            0.0%   1.6
>   4.6   1.6  37.1  10.2
>  8. 192.205.32.209                                              41.7% 1042.
> 1048. 1038. 1059.   9.1
>  9. cr1.sffca.ip.att.net                                        25.0% 1052.
> 1059. 1046. 1072.  10.0
> 10. cr1.la2ca.ip.att.net                                        27.3% 1043.
> 1060. 1043. 1071.  10.7
> 11. cr83.la2ca.ip.att.net                                       16.7% 1058.
> 1060. 1045. 1073.   8.8
> 12. gar7.la2ca.ip.att.net                                       16.7% 1059.
> 1061. 1044. 1087.  13.3
> 13. 12.249.143.98                                               33.3% 1059.
> 1057. 1048. 1071.   7.8
> 14. ???
>
>                                        My traceroute  [v0.71]
>
> hivemind (0.0.0.0)
> Fri Apr 11 15:36:43 2014
>
> Resolver: Received error response 2. (server failure)er of fields   quit
>
>                                                                   Packets
>             Pings
>
>  Host                                                           Loss%  Last
>   Avg  Best  Wrst StDev
>  1. 138.72.xxx.xxx                                               0.0%   0.2
>   0.1   0.1   0.2   0.0
>  2. pan5060-ae1-401.routerland.pixar.com                         0.0%   0.4
>   0.4   0.3   0.6   0.1
>  3. cat-vegas-01-vlan66.pixar.com                                0.0%  22.0
>  21.8  21.7  22.3   0.2
>  4. 205.129.21.101                                               0.0%  19.4
>  19.5  19.3  19.9   0.2
>  5. ae-2-5.bar1.LasVegas1.Level3.net                             0.0%  19.3
>  21.8  19.3  40.7   5.9
>  6. ae-4-4.ebr1.LosAngeles1.Level3.net                           0.0%  22.0
>  22.4  21.9  26.8   1.3
>  7. ae-6-6.ebr1.Tustin1.Level3.net                               0.0%  20.0
>  20.2  19.9  21.8   0.5
>  8. ae-107-3507.bar2.Tustin1.Level3.net                          0.0%  22.0
>  22.0  21.9  22.1   0.0
>  9. 192.205.37.145                                              30.8% 1052.
> 1063. 1048. 1072.   8.1
> 10. cr1.la2ca.ip.att.net                                        35.7% 1050.
> 1060. 1050. 1070.   7.3
> 11. cr83.la2ca.ip.att.net                                       28.6% 1049.
> 1064. 1049. 1072.   7.8
> 12. gar7.la2ca.ip.att.net                                       21.4% 1048.
> 1061. 1048. 1072.   6.7
> 13. 12.249.143.98                                               28.6% 1050.
> 1061. 1050. 1072.   7.9
> 14. ???
>
> Just wanted to share in case anyone else is running into similar issues. I
> know, I should be on the outages list. I will add myself now. :)
>
> Regards,
> Dave Sotnick